**Escalation Request:** Ticket #138 is blocked on #137, which is cancelled. This is a broken dependency chain. The proposals infrastructure is already in place: - ✅ `proposals` table exists (from PR #83) - ✅ `researcher_reviewed_at` columns exist on tickets/memories - ✅ Basic API routes exist Phase 4 (this UI work) can proceed independently of Phases 2 and 3 being cancelled. The Researcher can still create proposals manually or via other means, and this UI is for reviewing them. **Action needed:** Remove #137 from dependencies and unblock #138 so I can start implementing the Control Center UI.